Hazardous location approval – Rockwell Automation 1747-SCNR SLC ControlNet Scanner Module Installation Instructions User Manual
Page 21
 
SLC ControlNet Scanner Module 21
Publication 1747-IN059C-EN-P - September 2001
Hazardous Location Approval
The following information applies only to products marked 
with Hazardous Location Approval, when operating in 
hazardous locations: 
Products marked “CL I, DIV 2, GP A, B, C, D” are suitable for use in 
Class I Division 2 Groups A, B, C, D, Hazardous Locations and 
nonhazardous locations only. Each product is supplied with 
markings on the rating nameplate indicating the hazardous location 
temperature code. When combining products within a system, the 
most adverse temperature code (lowest “T” number) may be used to 
help determine the overall temperature code of the system. 
Combinations of equipment in your system are subject to 
investigation by the local Authority Having Jurisdiction at the time of 
installation
.
WARNING
ÿ
EXPLOSION HAZARD -
•
Do not disconnect equipment unless power has been 
removed or the area is known to be nonhazardous. 
•
Do not disconnect connections to this equipment 
unless power has been removed or the area is known 
to be nonhazardous. Secure any external connections 
that mate to this equipment by using screws, sliding 
latches, threaded connectors, or other means 
provided with this product. 
•
Substitution of components may impair suitability for 
Class I, Division 2. 
•
If this product contains batteries, they must only be 
changed in an area known to be nonhazardous.